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| author |   Afzal Mohammed <afzal@ti.com> | 2013-08-05 17:02:28 -0500 |
|---|---|---|
| committer |   Tomi Valkeinen <tomi.valkeinen@ti.com> | 2013-08-09 14:02:42 +0300 |
| commit | 404fdfe7f428c6425a13e96d0b56537eb67e08c5 (patch) | |
| tree | 3403cdefbef0def642ca1f2c46cc3b32e6666919 /drivers/video | |
| parent | video: da8xx-fb: store struct device * (diff) | |
| download | linux-dev-404fdfe7f428c6425a13e96d0b56537eb67e08c5.tar.xz linux-dev-404fdfe7f428c6425a13e96d0b56537eb67e08c5.zip | |
video: da8xx-fb: report correct pixclock
Update "var" pixclock with the value that is configurable in hardware.
This lets user know the actual pixclock.
Signed-off-by: Afzal Mohammed <afzal@ti.com>
Signed-off-by: Darren Etheridge <detheridge@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/da8xx-fb.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c index 7db109733fa1..8d737305a43b 100644 --- a/drivers/video/da8xx-fb.c +++ b/drivers/video/da8xx-fb.c @@ -686,6 +686,15 @@ static inline unsigned da8xx_fb_calc_clk_divider(struct da8xx_fb_par *par, return par->lcd_fck_rate / (PICOS2KHZ(pixclock) * 1000); } +static inline unsigned da8xx_fb_round_clk(struct da8xx_fb_par *par, + unsigned pixclock) +{ + unsigned div; + + div = da8xx_fb_calc_clk_divider(par, pixclock); + return KHZ2PICOS(par->lcd_fck_rate / (1000 * div)); +} + static inline void da8xx_fb_config_clk_divider(unsigned div) { /* Configure the LCD clock divisor. */ @@ -962,6 +971,8 @@ static int fb_check_var(struct fb_var_screeninfo *var, if (var->yres + var->yoffset > var->yres_virtual) var->yoffset = var->yres_virtual - var->yres; + var->pixclock = da8xx_fb_round_clk(par, var->pixclock); + return err; } |